Holding in Company

Senior PLC
22 October 2001

                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

SENIOR PLC

2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

SCHRODER INVESTMENT MANAGEMENT LIMITED

3)   Please state whether notification indicates that it is in respect of 
     holding of the Shareholder named in 2 above or in respect of a 
     non-beneficial interest or in the case of an individual holder if it is a
     holding of that person's spouse or children under the age of 18

SHAREHOLDER NAMED IN 2 ABOVE

4)   Name of the registered holder(s) and, if more than one holder, the 
     number of shares held by each of them.

SEE BELOW

5)   Number of shares/amount of stock acquired.



6)   ( N/A %) of issued Class

7)   Number of shares/amount of stock disposed


8)   ( N/A %) of issued Class

9)   Class of security

ORDINARY SHARES OF 10P EACH

10)  Date of transaction



11)  Date company informed

22 OCT 2001

12)  Total holding following this notification

57,923,878
               
13)  Total percentage holding of issued class following this notification

18.844%

14)  Any additional information



15)  Name of contact and telephone number for queries

Y BARNES
01923 714716

16)  Name and signature of authorised company official responsible for 
     making this notification   L. GRANT

     Date of Notification .....22 OCTOBER 2001 ...................


LETTER TO:   SENIOR PLC
DATED:  22 OCTOBER 2001

10p ORDINARY SHARES ('SHARES')

We write to advise you that we, Schroder Investment Management Limited, have an
interest in 53,423,878 shares which are held in portfolios managed by us on a
discretionary basis for clients under investment management agreements.

Included in this figure are.

(i)  20,682,443 shares registered or to be registered in the name of our
     wholly-owned subsidiary nominee company, Schroder Nominees Limited
     (Schroder Nominees),

(ii) 13,550,527 shares held in (a) unit trust(s) operated and managed by
     another wholly-owned subsidiary, Schroder Unit Trusts Limited (SUTL), and
     registered or to be registered in the name of Chase Nominees Limited.

(iii) 19,190,198 shares neither registered nor to be registered in the name of
      Schroder Nominees or Popeshead. The registration details are shown in the
      schedule A below.


An affiliated company, SIM North America Inc (SIMNA Inc), is managing (a) 
portfolio(s) on a discretionary basis holding a further 4,500,000 shares which 
are registered or to be registered in the name of Chase Nominees Limited.

We believe that we and our subsidiary and affiliated companies are therefore 
interested in an overall aggregate of 57,923,878 shares, representing some 
18.844% if the total number of shares in issue, namely 307,380,913 shares.

This notification is made to you:

(a) in respect of our interest as investment managers and also by virtue of the
    fact that we are the parent company of SUTL.

(b) on behalf of SIMNA Inc and SUTL in relation to the interest it is treated as
    having under the Companies Act 1985 (the Act), and

(c) on behalf of Schroders plc., our holding company, which is treated as
    having an interest in all of the above shares under the Act by virtue of
    its ownership of SIMNA Inc, Schroder Hermes and ourselves.


FROM:    BRENDA VERSTEEG
         COMPLIANCE REPORTING ASSISTANT
         SCHRODERS

                                  SCHEDULE A

                         SENIOR ENGINEERING GROUP PLC

                                        
                                10p ORDINARY SHARES

REGISTRATION                                           AMOUNT

Bank of New York                                        1,871,100
British Coal Staff Superannuation  a/c:P                2,177,028
Chase Nominees                                          1,344,000
Mineworkers' Pension Scheme a/c: R                        936,280
MSS Nominees Limited a/c:  809955                         402,000
MSS Nominees Limited a/c:  846435                       1,305,100
Nortrust Nominees Limited                               1,650,000
RBSTB Nominees Limited                                  3,675,900
State Street Nominees Limited                             739,000
State Street Nominees Limited a/c: 5H57                 1,840,500
State Street Nominees Limited a/c: JD19                 3,250,000
                                                        ---------
                                                       19,190,908